The answer is B. workers banding together against big business to demand better pay and working conditions (low wages, long workdays, no vacations, and unsafe workplaces.).
workers banding together against big business to demand better pay and working condition(low wages,long workdays,no vacation,and unsafe work place) (ANSWER B )this was the the reason why labor union grew up in order to protect the workers interest. There was a wide gap between employers and skilled workers which needed to be filled therefore workers developed union and collective bargain with their employers .